1/2″-800LB Close Die Forged Steel Globe Valve

Design Standard API 602 / ASME B16.34 / BS 5352
Nominal Size 1/2 inch (DN15)
Pressure Class Class 800 LB (PN130)
Structure Type OS&Y (Outside Screw and Yoke), Bolted Bonnet
Connection Type Butt Weld Ends (BW) per ASME B16.25
Operation Handwheel
Body Material ASTM A182 F11 Class 2 (Forged Chromium-Molybdenum Alloy Steel)

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설명

API 602 Forged Steel Globe Valve Technical Data Sheet

F11 Material 1/2″ 800LB Butt Weld Ends

General Information

Item	사양
밸브 유형	Forged Steel Globe Valve
Design Standard	API 602 / ASME B16.34 / BS 5352
공칭 크기	1/2 inch (DN15)
Pressure Class	Class 800 LB (PN130)
Structure Type	OS&Y (Outside Screw and Yoke), Bolted Bonnet
Connection Type	Butt Weld Ends (BW) per ASME B16.25
작업	Handwheel
본체 재질	ASTM A182 F11 Class 2 (Forged Chromium-Molybdenum Alloy Steel)

Applicable Standards

Item	Standard Code
Design & Manufacturing	API 602, ASME B16.34, BS 5352
Face-to-Face / End-to-End	Manufacturer Standard / ASME B16.10
Butt Weld Ends	ASME B16.25
Test & Inspection	API 598
Pressure-Temperature Rating	ASME B16.34 (Material Group 1.5)
Valve Marking	MSS SP-25

Main Design Features

차체 구조: One-piece die forged body, dense structure, high strength, eliminates casting defects, suitable for high temperature and high pressure services
Bonnet Connection: Bolted bonnet design with 304/flexible graphite spiral wound gasket sealing
Disc Design: Renewable disc type, hardfaced seating surface for durability
Stem Design: Backseat feature allows packing replacement under pressure when valve is fully open
Operating Characteristics: Disc moves linearly along seat centerline, short stroke, reliable shut-off
Flow Direction: Flow below seat design, reducing operating torque and protecting packing
Packing: Flexible graphite packing, low emission design
좌석: Renewable seat rings or integral hardfacing

Main Component Materials (F11 Material)

Item	Part Name	재료	Standard/Remark
1	몸	ASTM A182 F11 Class 2	Forged Cr-Mo Alloy Steel
2	Bonnet	ASTM A182 F11 Class 2	Forged Cr-Mo Alloy Steel
3	디스크	F11 + STL / F304	Hardfaced with Stellite or Stainless Steel
4	Seat Ring	F11 + STL / F304	Integral hardfacing or renewable type
5	줄기	ASTM A182 F6a (13Cr) / F304	Stainless Steel
6	Gasket	304 + Flexible Graphite	Spiral Wound
7	Packing	Flexible Graphite	Low emission design
8	Gland Bushing	ASTM A276 410 / F304	Stainless Steel
9	Gland Flange	ASTM A182 F11	Cr-Mo Steel
10	Bonnet Bolt	ASTM A193 Gr.B16	High Temperature Alloy Steel
11	Bonnet Nut	ASTM A194 Gr.4	Alloy Steel
12	Eye Bolt	ASTM A193 Gr.B16	High Temperature Alloy Steel
13	Handwheel	ASTM A197	Malleable Cast Iron

Technical Parameters & Dimensions

5.1 Pressure-Temperature Ratings

Item	매개변수
Nominal Pressure	Class 800 LB (PN130)
Shell Test Pressure	20.0 MPa (Hydrostatic) [API 598]
High-Pressure Seat Test Pressure	14.8 MPa (Hydrostatic) [API 598]
Low-Pressure Pneumatic Test Pressure	0.5 – 0.7 MPa (Air) [API 598]
온도 범위	-29°C ~ 540°C (per ASME B16.34 Group 1.5)
Applicable Media	Steam, high temperature oil, etc.

5.2 Dimensions (1/2″ Class 800 Butt Weld Ends)

Dimension	Value	Remark
End-to-End Length (L)	79 mm	Butt Weld Ends, typical API 602 value
Height (H-OPEN)	Approx. 157 mm	Fully open position, reference
Handwheel Diameter (W)	100 mm	Reference
Butt Weld OD	21.3 mm	Matching 1/2″ Sch40/80 pipe
Butt Weld Wall Thickness (t)	Per ASME B16.25	Bevel preparation per standard
Weight	Approx. 1.6 kg	Bolted bonnet type, reference

5.3 End Connection Details

Butt Weld Ends (BW): Bevel preparation and dimensions per ASME B16.25, suitable for welding to pipe

Test & Inspection (API 598)

Test Item	Test Pressure	Medium	Acceptance Criteria
Shell Test	20.0 MPa	Water	No visible leakage
High-Pressure Seat Test	14.8 MPa	Water	No visible leakage
Low-Pressure Seat Test	0.5 – 0.7 MPa	Air	No bubbles leakage
Test Duration	Per API 598	—	Hold time conforms to standard

Marking & Supply

Valve Marking: Per MSS SP-25, nameplate to include nominal size, pressure class, material, heat number, design standard, etc.
Flow Direction: Flow direction arrow marking on body (flow below seat)
Cleaning & Protection: Valves internally and externally cleaned, ends covered with protectors
Documentation: Material certificates, pressure test reports, declaration of conformity provided with shipment

보증:

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